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  2. List of Dewey Decimal classes - Wikipedia

    en.wikipedia.org/wiki/List_of_Dewey_Decimal_classes

    320 Political science. 320 Political science (Politics and government) 321 Systems of governments and states; 322 Relation of state to organized groups and their members; 323 Civil and political rights; 324 The political process; 325 International migration and colonization; 326 Slavery and emancipation; 327 International relations; 328 The ...

  3. Comparison of Dewey and Library of Congress subject ...

    en.wikipedia.org/wiki/Comparison_of_Dewey_and...

    This is a conversion chart showing how the Dewey Decimal and Library of Congress Classification systems organize resources by concept, in part for the purpose of assigning call numbers. These two systems account for over 95% of the classification in United States libraries, and are used widely around the world.

  4. Dewey Decimal Classification - Wikipedia

    en.wikipedia.org/wiki/Dewey_Decimal_Classification

    A library bookshelf in Hong Kong classified using the New Classification Scheme for Chinese Libraries, an adaptation of the Dewey Classification scheme. The Dewey Decimal Classification (DDC), colloquially known as the Dewey Decimal System, is a proprietary library classification system which allows new books to be added to a library in their appropriate location based on subject.

  5. NCERT textbook controversies - Wikipedia

    en.wikipedia.org/wiki/NCERT_textbook_controversies

    The deletions also affected Biology and Chemistry textbooks as the theory of evolution and the periodic table were also purged from class 10 NCERT textbooks. [40] [41] In April 2024, the NCERT revised its Political Science curriculum for grades 11 and 12.

  6. Positional notation - Wikipedia

    en.wikipedia.org/wiki/Positional_notation

    Another common way of expressing the base is writing it as a decimal subscript after the number that is being represented (this notation is used in this article). 1111011 2 implies that the number 1111011 is a base-2 number, equal to 123 10 (a decimal notation representation), 173 8 and 7B 16 (hexadecimal).

  7. Hindu–Arabic numeral system - Wikipedia

    en.wikipedia.org/wiki/Hindu–Arabic_numeral_system

    The Hindu–Arabic system is designed for positional notation in a decimal system. In a more developed form, positional notation also uses a decimal marker (at first a mark over the ones digit but now more commonly a decimal point or a decimal comma which separates the ones place from the tenths place), and also a symbol for "these digits recur ad infinitum".

  8. Decimal data type - Wikipedia

    en.wikipedia.org/wiki/Decimal_data_type

    C# has a built-in data type decimal consisting of 128 bits resulting in 28–29 significant digits. It has an approximate range of ±1.0 × 10 −28 to ±7.9228 × 10 28. [1] Starting with Python 2.4, Python's standard library includes a Decimal class in the module decimal. [2] Ruby's standard library includes a BigDecimal class in the module ...

  9. Universal Decimal Classification - Wikipedia

    en.wikipedia.org/wiki/Universal_Decimal...

    Genealogy. Heraldry. Flags 929 Biographical studies 929.5 Genealogy 929.6 Heraldry 929.7 Nobility. Titles. Peerage 929.9 Flags. Standards. Banners 93/94 History 930 Science of history. Historiography 930.1 History as a science 930.2 Methodology of history. Ancillary historical sciences 930.25 Archivistics.